cimport numpy as cnp from pandas._libs.tslibs.util cimport * cdef extern from "src/headers/stdint.h": enum: UINT8_MAX enum: UINT16_MAX enum: UINT32_MAX enum: UINT64_MAX enum: INT8_MIN enum: INT8_MAX enum: INT16_MIN enum: INT16_MAX enum: INT32_MAX enum: INT32_MIN enum: INT64_MAX enum: INT64_MIN